:root {
  color-scheme: dark;
  --bg: #10131d;
  --surface: #191d2a;
  --text: #f2f4fb;
  --muted: #a6aec2;
  --border: #303649;
  --primary: #8c8cff;
  --primary-dark: #a4a4ff;
  --danger: #ff7d8b;
  --danger-soft: #4a2229;
  --brand-gold: #f2c14e;
  --shadow: 0 18px 45px rgb(0 0 0 / 28%);
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  display: grid;
  min-height: 100vh;
  margin: 0;
  padding: clamp(3rem, 8vw, 6rem) 1rem;
  place-items: center;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
}

button,
input {
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.login-card {
  --group-border-color: color-mix(in srgb, var(--border), transparent 12%);
  --group-radius: 14px;
  --group-padding-inline-start: 0.78rem;
  --group-padding-inline-end: 1.5rem;

  position: relative;
  width: min(28rem, calc(100vw - 2rem));
  border: 1px solid var(--group-border-color);
  border-radius: var(--group-radius);
  padding: 2.5rem var(--group-padding-inline-end) 1.5rem
    var(--group-padding-inline-start);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.group-title {
  position: absolute;
  z-index: 1;
  inset-block-start: 0;
  inset-inline-start: -1px;
  width: max-content;
  max-width: calc(100% - 9rem);
  margin: 0;
  border-radius: 10px 20px 0 0;
  padding: 0.28rem var(--group-padding-inline-end) 0.28rem
    var(--group-padding-inline-start);
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  translate: 0 -50%;
}

.group-title::before {
  position: absolute;
  content: "";
  inset: 0;
  border: 1px solid var(--group-border-color);
  border-bottom: 0;
  border-radius: inherit;
  clip-path: inset(0 0 50% 0);
  pointer-events: none;
}

.group-title::after {
  position: absolute;
  content: "";
  inset-block: 50% 0;
  inset-inline-start: 0;
  border-inline-start: 1px solid var(--group-border-color);
  pointer-events: none;
}

.brand {
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: var(--group-padding-inline-end);
  display: flex;
  min-height: 30px;
  align-items: center;
  gap: 0;
  padding-inline: 0.25rem;
  background: var(--surface);
  border-radius: 6px;
  color: var(--text);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 30px;
  translate: 0 -50%;
}

.brand-gold {
  color: var(--brand-gold);
}

.brand-pipe {
  position: relative;
  align-self: stretch;
  width: 0.22em;
  overflow: hidden;
  color: transparent;
}

.brand-pipe::before {
  position: absolute;
  content: "";
  inset-block-start: 50%;
  inset-inline-start: 50%;
  width: 0;
  height: 24px;
  border-inline-start: 3px solid var(--text);
  translate: -50% -50%;
}

form {
  display: grid;
  gap: 20px;
}

.field {
  display: grid;
  min-width: 0;
  gap: 0;
}

.field > span {
  color: var(--muted);
  font-size: 0.7em;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  min-height: 38px;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  transition: border-color 140ms ease, box-shadow 140ms ease, color 140ms ease;
}

.field input:hover {
  border-bottom-color: color-mix(in srgb, var(--primary), var(--border) 62%);
}

.field input:focus {
  border-bottom-color: var(--primary);
  outline: 0;
  box-shadow: 0 2px 0 color-mix(in srgb, var(--primary), transparent 30%);
}

.field input:-webkit-autofill {
  border-bottom-color: var(--border);
  -webkit-box-shadow: 0 0 0 1000px var(--surface) inset;
  -webkit-text-fill-color: var(--text);
}

button {
  display: inline-flex;
  width: 100%;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary);
  border-radius: 9px;
  padding: 0.52rem 0.85rem;
  background: var(--primary);
  box-shadow: 0 9px 22px color-mix(in srgb, var(--primary), transparent 70%);
  color: white;
  font-weight: 720;
  line-height: 1;
  transition: background 140ms ease, border-color 140ms ease, box-shadow 140ms
    ease, color 140ms ease;
  cursor: pointer;
}

button:hover {
  border-color: var(--primary-dark);
  background: var(--primary-dark);
}

button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--primary), transparent 65%);
  outline-offset: 2px;
}

.error {
  margin: 0 0 20px;
  border-radius: 4px;
  padding: 0.55rem 0.7rem;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 0.84rem;
}

.hint {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.hint code {
  color: var(--primary-dark);
}

@media (max-width: 480px) {
  .login-card {
    --group-radius: 11px;
    --group-padding-inline-end: 1rem;
    padding-block-end: 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}